The BGP Instability Report

The BGP Instability Report is updated daily. This report
was generated on 03 July 2009 01:38 (UTC+1000)

50 Most active ASes for the past 7 days

RANK	ASN	UPDs	%	Prefixes	UPDs/Prefix	AS NAME
1	9198	86810	4.46%	290	299.34	KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration
2	4755	31871	1.64%	1221	26.10	TATACOMM-AS TATA Communications formerly VSNL is Leading ISP
3	17488	28227	1.45%	1544	18.28	HATHWAY-NET-AP Hathway IP Over Cable Internet
4	10474	17094	0.88%	41	416.93	NETACTIVE
5	22783	14699	0.75%	6	2449.83	WEBPOWER - WebPower, Inc.
6	21104	14329	0.74%	14	1023.50	AM-NETSYS-AS Netsys JVC Autonomous System Yerevan, Armenia
7	6389	14119	0.73%	4281	3.30	BELLSOUTH-NET-BLK - BellSouth.net Inc.
8	21491	12942	0.66%	30	431.40	UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa
9	23700	12849	0.66%	414	31.04	BM-AS-ID PT. Broadband Multimedia, Tbk
10	33783	11714	0.60%	153	76.56	EEPAD
11	30890	11347	0.58%	419	27.08	EVOLVA Evolva Telecom
12	47408	11043	0.57%	21	525.86	MANDARIN-AS Mandarin WIMAX Sicilia SpA
13	30969	10906	0.56%	18	605.89	TAN-NET TransAfrica Networks
14	4812	10307	0.53%	897	11.49	CHINANET-SH-AP China Telecom (Group)
15	8452	8289	0.43%	1052	7.88	TEDATA TEDATA
16	1221	8218	0.42%	724	11.35	ASN-TELSTRA Telstra Pty Ltd
17	4134	8065	0.41%	984	8.20	CHINANET-BACKBONE No.31,Jin-rong Street
18	8151	7899	0.41%	1474	5.36	Uninet S.A. de C.V.
19	24863	7693	0.40%	905	8.50	LINKdotNET-AS
20	5668	7672	0.39%	1040	7.38	AS-5668 - CenturyTel Internet Holdings, Inc.
21	20115	7034	0.36%	1416	4.97	CHARTER-NET-HKY-NC - Charter Communications
22	4795	6893	0.35%	314	21.95	INDOSATM2-ID INDOSATM2 ASN
23	4766	6811	0.35%	1827	3.73	KIXS-AS-KR Korea Telecom
24	22773	6451	0.33%	1072	6.02	ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc.
25	7018	6415	0.33%	1513	4.24	ATT-INTERNET4 - AT&T WorldNet Services
26	1785	6371	0.33%	1706	3.73	AS-PAETEC-NET - PaeTec Communications, Inc.
27	3816	6364	0.33%	394	16.15	COLOMBIA TELECOMUNICACIONES S.A. ESP
28	4323	6323	0.32%	4324	1.46	TWTC - tw telecom holdings, inc.
29	17974	6316	0.32%	647	9.76	TELKOMNET-AS2-AP PT Telekomunikasi Indonesia
30	5050	5932	0.30%	17	348.94	PSC-EXT - Pittsburgh Supercomputing Center
31	35805	5920	0.30%	355	16.68	UTG-AS United Telecom AS
32	4249	5739	0.29%	181	31.71	LILLY-AS - Eli Lilly and Company
33	14420	5481	0.28%	343	15.98	CORPORACION NACIONAL DE TELECOMUNICACIONES CNT S.A.
34	6478	5456	0.28%	1407	3.88	ATT-INTERNET3 - AT&T WorldNet Services
35	36616	5425	0.28%	4	1356.25	AGTLD - VeriSign Global Registry Services
36	5237	5360	0.28%	35	153.14	DNIC-ASBLK-05120-05376 - DoD Network Information Center
37	2764	5232	0.27%	497	10.53	AAPT AAPT Limited
38	7303	4722	0.24%	577	8.18	Telecom Argentina S.A.
39	11492	4713	0.24%	1118	4.22	CABLEONE - CABLE ONE, INC.
40	23577	4705	0.24%	933	5.04	ATM-MPLS-AS-KR Korea Telecom
41	7011	4696	0.24%	984	4.77	FRONTIER-AND-CITIZENS - Frontier Communications of America, Inc.
42	4787	4416	0.23%	170	25.98	ASN-CBN Internet Service Provider
43	27064	4387	0.23%	580	7.56	DNIC-ASBLK-27032-27159 - DoD Network Information Center
44	7633	4334	0.22%	195	22.23	SOFTNET-AS-AP Software Technology Parks of India - Bangalore
45	2386	4325	0.22%	1281	3.38	INS-AS - AT&T Data Communications Services
46	29049	4250	0.22%	317	13.41	DELTA-TELECOM-AS Delta Telecom LTD.
47	25546	4205	0.22%	10	420.50	BROOKLANDCOMP-AS Brookland Computer Services
48	25543	4183	0.21%	49	85.37	FasoNet-AS
49	3356	4125	0.21%	1213	3.40	LEVEL3 Level 3 Communications
50	10620	4094	0.21%	926	4.42	TV Cable S.A.
Total		496771	25.50%

50 Most active ASes for the past 7 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	22783	2449.8	0.75%	6	14699	WEBPOWER - WebPower, Inc.
2	36616	1356.2	0.28%	4	5425	AGTLD - VeriSign Global Registry Services
3	47640	1315.0	0.07%	3	1315	TRICOMPAS Tricomp Sp. z. o. o.
4	21104	1023.5	0.74%	14	14329	AM-NETSYS-AS Netsys JVC Autonomous System Yerevan, Armenia
5	29508	850.0	0.04%	1	850	TANAT-AS TANAT LLC
6	41189	719.0	0.04%	1	719	ICONCEPT-AS iConcept
7	37011	620.2	0.19%	6	3721	MSTARTEL-AS
8	30969	605.9	0.56%	18	10906	TAN-NET TransAfrica Networks
9	47408	525.9	0.57%	21	11043	MANDARIN-AS Mandarin WIMAX Sicilia SpA
10	25546	525.6	0.22%	10	4205	BROOKLANDCOMP-AS Brookland Computer Services
11	35400	511.0	0.13%	5	2555	MFIST Interregoinal Organization Network Technologies
12	27653	503.8	0.10%	4	2015	Alpha Communications Network
13	21491	479.3	0.66%	30	12942	UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa
14	10474	416.9	0.88%	41	17094	NETACTIVE
15	13403	415.0	0.02%	1	415	ALAWEB-INTERNET - ALAWEB Internet Services
16	36975	403.0	0.02%	1	403	CBA-AS
17	37083	403.0	0.02%	1	403	hiqos-as
18	38136	382.0	0.04%	2	764	MBTELTRANSIT-BD MB TELECCOM LIMITED, INTERNET SERVICE PROVIDER
19	33074	370.0	0.02%	1	370	ISC-NBO1 ISC, Nairobi, Kenya
20	5050	348.9	0.30%	17	5932	PSC-EXT - Pittsburgh Supercomputing Center
21	17922	306.5	0.09%	6	1839	INDOSAT-INP INDOSAT Internet Network Provider
22	9198	299.3	4.46%	290	86810	KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration
23	27667	298.0	0.05%	3	894	Universidad Autonoma de la Laguna
24	36986	298.0	0.02%	1	298	AINET
25	48331	269.2	0.08%	6	1615	GLOBNET-AS SC GLOBNET S.R.L. Autonomous System
26	40060	254.6	0.12%	9	2291	AAAWI - AAA Wireless, Inc.
27	4796	247.0	0.01%	1	247	BANDUNG-NET-AS-AP Institute of Technology Bandung
28	37062	245.3	0.04%	3	736	ASN-BNI
29	31204	211.1	0.18%	17	3589	SUNCOMMUNICATIONS-AS JV "Sun Communications" Autonomous System
30	5691	202.7	0.14%	13	2635	MITRE-AS-5 - The MITRE Corporation
31	39107	199.0	0.01%	1	199	INTERLAN-AS Asociatia Interlan
32	41492	190.0	0.01%	1	190	EXIMBANK-AS SC Eximbank SA
33	44906	188.0	0.01%	1	188	COLTEA-AS Spitalul Clinic Coltea
34	3944	184.3	0.03%	3	553	PARTAN-LAB - Partan & Partan
35	42163	184.0	0.01%	1	184	IRANGATE Rasaneh Esfahan Net Autonomous System ( Irangate Internet Service Provider)
36	47262	179.5	0.02%	2	359	HAMARA-AS Hamara System Tabriz Engineering Company
37	10859	178.0	0.04%	4	712	COMPUTER-SCIENCES-CORP-NTIS - Computer Sciences Corp - NTIS
38	18212	172.5	0.02%	2	345	NIFT-AS-PK National Institutional Facilitation Technologies
39	48575	172.0	0.01%	1	172	KITCOM-AS Kara amin ertebat
40	45328	171.0	0.03%	3	513	NIPA-AS-TH NIPA TECHNOLOGY CO., LTD
41	48431	169.0	0.01%	1	169	MAXNET MAXNET Autonomous System
42	48592	168.0	0.02%	2	336	DORNA-AS Shabakeh Gostare Dorna Co.
43	5618	163.7	0.03%	3	491	DPI DP IRAN
44	31303	162.0	0.01%	1	162	NIOC-AS NIOC Network, Iran
45	43444	160.0	0.02%	3	480	NAVID-AS Navid Net Internet service provider
46	40660	159.0	0.01%	1	159	ASUQTR - Universite du Quebec a Trois-Rivieres
47	44375	159.0	0.02%	3	477	AISDP Asmanfaraz ISDP
48	29577	159.0	0.01%	1	159	IUT-AS Isfahan University of Technology AS
49	44208	157.0	0.01%	1	157	FARAHOOSH Farahoosh Dena
50	44427	154.0	0.01%
Total		20284.7	11.18%

50 Most active Prefixes for the past 7 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	95.59.8.0/23	10566	0.52%	9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration
2	95.59.2.0/23	10565	0.52%	9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration
3	95.59.4.0/22	10565	0.52%	9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration
4	92.46.244.0/23	10561	0.52%	9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration
5	89.218.220.0/23	10561	0.52%	9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration
6	89.218.218.0/23	10560	0.52%	9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration
7	95.59.1.0/24	9892	0.49%	9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration
8	88.204.221.0/24	9866	0.48%	9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration
9	80.86.238.0/24	7170	0.35%	21104 -- AM-NETSYS-AS Netsys JVC Autonomous System Yerevan, Armenia
10	80.86.239.0/24	6938	0.34%	21104 -- AM-NETSYS-AS Netsys JVC Autonomous System Yerevan, Armenia
11	72.23.246.0/24	5834	0.29%	5050 -- PSC-EXT - Pittsburgh Supercomputing Center
12	205.246.203.0/24	5686	0.28%	22783 -- WEBPOWER - WebPower, Inc.
13	63.163.66.0/24	5684	0.28%	22783 -- WEBPOWER - WebPower, Inc.
14	65.113.57.0/24	5413	0.27%	36616 -- AGTLD - VeriSign Global Registry Services
15	196.27.104.0/21	4399	0.22%	30969 -- TAN-NET TransAfrica Networks
16	196.27.108.0/22	4383	0.22%	30969 -- TAN-NET TransAfrica Networks
17	193.201.184.0/21	4156	0.20%	25546 -- BROOKLANDCOMP-AS Brookland Computer Services
18	65.212.89.0/24	3311	0.16%	22783 -- WEBPOWER - WebPower, Inc.
19	192.12.120.0/24	2596	0.13%	5691 -- MITRE-AS-5 - The MITRE Corporation
20	90.150.0.0/24	2527	0.12%	35400 -- MFIST Interregoinal Organization Network Technologies
21	95.59.3.0/24	2503	0.12%	9198 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration
22	72.42.193.0/24	2267	0.11%	40060 -- AAAWI - AAA Wireless, Inc.
23	196.2.16.0/24	2166	0.11%	10474 -- NETACTIVE
24	196.2.145.0/24	2151	0.11%	10474 -- NETACTIVE
25	41.222.236.0/22	1910	0.09%	37011 -- MSTARTEL-AS
26	200.113.192.0/19	1812	0.09%	27653 -- Alpha Communications Network
27	203.178.128.0/17	1552	0.08%	2500 -- WIDE-BB WIDE Project
28	81.199.18.0/24	1514	0.07%	21491 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa
29	81.199.22.0/24	1418	0.07%	21491 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa
30	81.199.23.0/24	1418	0.07%	21491 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa
31	81.199.16.0/22	1418	0.07%	21491 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa
32	196.0.0.0/16	1413	0.07%	21491 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa
33	89.4.131.0/24	1375	0.07%	24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA)
34	81.199.28.0/22	1367	0.07%	21491 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa
35	81.199.20.0/24	1364	0.07%	21491 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa
36	205.89.32.0/20	1327	0.07%	5237 -- DNIC-ASBLK-05120-05376 - DoD Network Information Center
37	196.0.8.0/21	1326	0.07%	21491 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa
38	94.124.16.0/21	1315	0.06%	47640 -- TRICOMPAS Tricomp Sp. z. o. o.
39	196.0.6.0/24	1306	0.06%	21491 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa
40	85.60.192.0/21	1051	0.05%	12479 -- UNI2-AS Uni2 Autonomous System
41	196.2.136.0/21	952	0.05%	10474 -- NETACTIVE
42	150.137.161.0/24	920	0.05%	1600 -- DNIC-ASBLK-1550-1601 - DoD Network Information Center 227 -- SHAFTER-AS - Headquarters, USAISC
43	196.2.32.0/22	913	0.04%	10474 -- NETACTIVE
44	196.2.150.0/24	909	0.04%	10474 -- NETACTIVE
45	212.46.64.0/24	906	0.04%	47408 -- MANDARIN-AS Mandarin WIMAX Sicilia SpA
46	196.2.144.0/22	905	0.04%	10474 -- NETACTIVE
47	212.46.65.0/24	905	0.04%	47408 -- MANDARIN-AS Mandarin WIMAX Sicilia SpA
48	212.46.95.0/24	905	0.04%	47408 -- MANDARIN-AS Mandarin WIMAX Sicilia SpA
49	212.46.77.0/24	905	0.04%	47408 -- MANDARIN-AS Mandarin WIMAX Sicilia SpA
50	212.46.67.0/24	900	0.04%	47408 -- MANDARIN-AS Mandarin WIMAX Sicilia SpA
Total		182326	8.95%

7 Day BGP Profile: 25-June-2009 00:00 - 2-July-2009 23:59 (UTC+1000)

Number of BGP Update Messages:	1323266
Number of Prefix Updates:	1947103
Number of Prefix Withdrawals:	90034
Average Prefixes per BGP Update:	1.54
Average BGP Update Messages per second:	1.91
Average Prefix Updates per second:	2.95
Peak BGP Update Message Rate per second:	7176	(16:42:00 Tue, 30-Jun-2009)
Peak Prefix Update Rate per second:	1826	(17:39:10 Sat, 27-Jun-2009)
Peak Prefix Withdraw Rate per second:	28602	(23:36:25 Fri, 26-Jun-2009)
Prefix Count:	301445
Updated Prefix Count:	285288
Stable Prefix Count:	16157
Origin AS Count:	31780
Updated Origin AS Count:	31274
Stable Origin AS Count:	506
Unique Path Count:	160979
Updated Path Count:	125420
Stable Path Count:	35559

Hourly Average of Per-Second Updated and Withdrawn Prefix Rate

Hourly Peak of Per-Second Updated and Withdrawn Prefix Rate

Hourly Average Per-Second Updated Prefix Rate by Update Type

Hourly Peak of Per-Second Updated Prefix Rate by Update Type

BGP Table Activity

Cumulative Distribution of per-Prefix and per-AS Updates

Notes

The data has been gathered using a single eBGP peering with AS 131072. The observations of BGP path change are relative to this observation point. The updates are generated by a Quagga BGP implementation providing a timestamped log of incoming update messages. The timezone of this monitoring point is UTC+1000. Updates are processed on a 24 hour cycle.